* [PATCH] memcg: make global var to be read_mostly
@ 2008-05-09 5:56 KAMEZAWA Hiroyuki
2008-05-09 5:58 ` Balbir Singh
0 siblings, 1 reply; 3+ messages in thread
From: KAMEZAWA Hiroyuki @ 2008-05-09 5:56 UTC (permalink / raw)
To: LKML
Cc: linux-mm@kvack.org, Andrew Morton, balbir@linux.vnet.ibm.com,
xemul@openvz.org, lizf, yamamoto@valinux.co.jp
An easy cut out from memcg: performance improvement patch set.
Tested on: x86-64/linux-2.6.26-rc1-git6
Thanks,
-Kame
==
mem_cgroup_subsys and page_cgroup_cache should be read_mostly and
MEM_CGROUP_RECLAIM_RETRIES can be just a fixed number.
Changelog:
* makes MEM_CGROUP_RECLAIM_RETRIES to be a macro
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Index: linux-2.6.26-rc1/mm/memcontrol.c
===================================================================
--- linux-2.6.26-rc1.orig/mm/memcontrol.c
+++ linux-2.6.26-rc1/mm/memcontrol.c
@@ -35,9 +35,9 @@
#include <asm/uaccess.h>
-struct cgroup_subsys mem_cgroup_subsys;
-static const int MEM_CGROUP_RECLAIM_RETRIES = 5;
-static struct kmem_cache *page_cgroup_cache;
+struct cgroup_subsys mem_cgroup_subsys __read_mostly;
+static struct kmem_cache *page_cgroup_cache __read_mostly;
+#define MEM_CGROUP_RECLAIM_RETRIES 5
/*
* Statistics for memory cgroup.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] memcg: make global var to be read_mostly
2008-05-09 5:56 [PATCH] memcg: make global var to be read_mostly KAMEZAWA Hiroyuki
@ 2008-05-09 5:58 ` Balbir Singh
2008-05-12 9:28 ` Pavel Emelyanov
0 siblings, 1 reply; 3+ messages in thread
From: Balbir Singh @ 2008-05-09 5:58 UTC (permalink / raw)
To: KAMEZAWA Hiroyuki
Cc: LKML, linux-mm@kvack.org, Andrew Morton, xemul@openvz.org, lizf,
yamamoto@valinux.co.jp
KAMEZAWA Hiroyuki wrote:
> An easy cut out from memcg: performance improvement patch set.
> Tested on: x86-64/linux-2.6.26-rc1-git6
>
> Thanks,
> -Kame
>
> ==
> mem_cgroup_subsys and page_cgroup_cache should be read_mostly and
> MEM_CGROUP_RECLAIM_RETRIES can be just a fixed number.
>
> Changelog:
> * makes MEM_CGROUP_RECLAIM_RETRIES to be a macro
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] memcg: make global var to be read_mostly
2008-05-09 5:58 ` Balbir Singh
@ 2008-05-12 9:28 ` Pavel Emelyanov
0 siblings, 0 replies; 3+ messages in thread
From: Pavel Emelyanov @ 2008-05-12 9:28 UTC (permalink / raw)
To: balbir
Cc: KAMEZAWA Hiroyuki, LKML, linux-mm@kvack.org, Andrew Morton, lizf,
yamamoto@valinux.co.jp
Balbir Singh wrote:
> KAMEZAWA Hiroyuki wrote:
>> An easy cut out from memcg: performance improvement patch set.
>> Tested on: x86-64/linux-2.6.26-rc1-git6
>>
>> Thanks,
>> -Kame
>>
>> ==
>> mem_cgroup_subsys and page_cgroup_cache should be read_mostly and
>> MEM_CGROUP_RECLAIM_RETRIES can be just a fixed number.
>>
>> Changelog:
>> * makes MEM_CGROUP_RECLAIM_RETRIES to be a macro
>>
>> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>>
>>
>
> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2008-05-09 5:58 ` Balbir Singh
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